NEW
Font size
S
M
L
XL
WorksheetsCardiac cycle & Electrical Events
Total questions: 27
Worksheet time: 27mins
Name
Class
Date
1.
The t-wave correlates with which event?
a)
atrium contraction /signals moving from SA node to AV node
b)
ventricle contraction
c)
ventricle repolarization
d)
both atrial and ventricle contraction
2.
The QRS-wave correlates with which event?
a)
atrium contraction /signals moving from SA node to AV node
b)
ventricle contraction
c)
ventricle repolarization
d)
both atrial and ventricle contraction
3.
What is the sequence of events in the transmission of an impulse through the heart muscle?
a: AV node
b: AV bundle
c: SA node
d: Through the atria
e: Through the ventricles
f: Bundle branches
g: Purkinje fibers
a: AV node
b: AV bundle
c: SA node
d: Through the atria
e: Through the ventricles
f: Bundle branches
g: Purkinje fibers
a)
d, b, a, c, f, g, e
b)
c, d, a, b, f, g, e
c)
b, a, d, c, f, g, e
d)
f, g, d, c, b, a, e
4.
Order the phases an action potential travels in the conduction system
a)
SA node--> AV bundle branches--> AV node--> Purkinje fibers
b)
SA node--> AV node--> AV bundle branches--> Purkinje fibers
c)
Av bundle branches--> AV node--> SA node--> Purkinje fibers
d)
Purkinje fibers--> SA node--> AV node--> AV bundle branches
5.
The role of the atrioventricular node (AV node) is to
a)
initiate a sinus rhythm
b)
conduct impulses to the sinoatrial node (SA node)
c)
initiate ventricular depolarization
d)
slow down impulses so that the atria can contract to fill the adjacent ventricles with blood
6.
The P wave of an ECG represents
a)
atrial repolarization
b)
atrial depolarization
c)
ventricular repolarization
d)
ventricular depolarization
7.
The second heart sound (the dup of the lub-dup) is caused by the
a)
opening of the pulmonary and aortic valves
b)
closure of the tricuspid and bicuspid valves
c)
closure of the pulmonary and aortic valves
d)
opening of the tricuspid and bicuspid valves
8.
Which of the following pairs of words are not equivalent ?
a)
Systole : Contraction
b)
Contraction : Depolarization
c)
Diastole : Deploarization
d)
Relaxation : Repolarization
9.
T/F: Heart murmurs are indicative of the valves of the heart not functioning properly:
a)
True
b)
False
10.
Mr. Shore's heart rate is 70 beats per minute and he has a stroke volume of 0.05 liters per stroke. What is his cardiac output?
a)
5 Liters / minute
b)
4 Liters / minute
c)
3 Liters / minute
d)
3.5 Liters / minute
11.
If the heart is beating too fast, it might be indicative of this condition:
a)
Brachycardia
b)
Tachycardia
c)
Congestive Heart Failure
d)
Heart Murmurs
12.
All of the following occur when the ventricles contract except
a)
the AV valves close
b)
blood is ejected into the aorta
c)
the semilunar valves open
d)
blood from the pulmonary trunk enters the atria
13.
During atrial contraction and ventricular filling,
a)
the AV valves are open
b)
the semilunar valves are open
c)
the ventricles are contracted
d)
the atria are relaxed
14.
The semilunar valves are only open during which phase
a)
atrial contraction and ventricular filling
b)
isovolumetric contraction
c)
ventricular ejection
d)
isovolumetric relaxation
15.
Which is likely to occur if unequal amounts of blood were pumped by each ventricle?
a)
myocardial infarction
b)
heart block
c)
edema
d)
stroke
16.
During ventricular ejection
a)
only the AV valves open
b)
the semilunar valves open and the AV valves close
c)
only the semilunar valves close
d)
the semilunar valves close and the AV valves open
17.
Atrial contraction occurs just before
a)
isometric relaxation
b)
isometric contraction
c)
ventricular ejection
d)
atrial relaxation and ventricular filling
18.
If all therapies are available and ready for use, which would be the priority intervention for this rhythm?
a)
Epinephrine
b)
Vasopressin
c)
Cardioversion
d)
Defibrillation
19.
What is wrong with this strip?
a)
Tachycardia
b)
Elevated ST segment
c)
No P wave
d)
Wide QRS complex
20.
If the p-wave is "quivering" what medical condition is occurring?
a)
Myocardial infarction
b)
Damaged AV valves
c)
Hyperkalemia
d)
Atrial fibrillation (Afib)
21.
Which of the following intervals should be used to determine the regularity of ventricular depolarization?
a)
P-P
b)
R-R
c)
QT
d)
PR
22.
In a normal patient, which of the following is the expected shape and direction of the P wave in lead II?
a)
peaked and upright
b)
peaked and inverted
c)
rounded and inverted
d)
rounded and upright
23.
Valve flaps become stiff from bacterial infection.
a)
Angina pectoris
b)
Valvular stenosis
c)
Incompetent valve
d)
Pericarditis
24.
Causes the heart to pump the same blood over and over.
a)
Angina pectoris
b)
Valvular stenosis
c)
Incompetent valve
d)
Pericarditis
25.
Inflammation of the pericardium.
a)
Angina pectoris
b)
Valvular stenosis
c)
Incompetent valve
d)
Pericarditis
26.
Heart rate less than 60 beats per min.
a)
Congestive heart failure (CHF)
b)
Heart murmurs
c)
Bradycardia
d)
Tachycardia
27.
Abnormal or unusual heart sounds.
a)
Congestive heart failure (CHF)
b)
Heart murmurs
c)
Bradycardia
d)
Tachycardia
Reset
